Punching bag



FIG. 1 is a perspective view of a punching bag showing my new design;

FIG. 2 is a perspective view thereof from another angle;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is an enlarged view of a portion indicated with numeric 9 in FIG.1 .

CLAIM The ornamental design for a punching bag, as shown and described.